4. The frequencies of musical notes ( measured in cycles per second) form a
geometric sequence. Middle C has a frequency of 256 c/s and C an octave
higher, has a frequency of 512 c/s. Find the frequency of the C two octaves
below middle C
Please show me how to do this!

Question

4.	The frequencies of musical notes ( measured in cycles per second) form a
 geometric sequence. Middle C has a frequency of 256 c/s and C an octave
 higher, has a frequency of 512 c/s.  Find the frequency of the C two octaves
 below middle C
Please show me how to do this!

anonymous · Answer

Octaves are a doubling in frequency.
1 octave high, means 2 times the frequency
1 low means half

anonymous · Answer

256Hz /2 = 128Hz
128Hz /2 = 64Hz

anonymous · Answer

All you have to do to find the higher octave of any note, is take that notes frequency, and double it.

To find the lower octave of any note, cut it in half.

anonymous · Answer

What else did you want to know?